Textile fabric.



G. H. SMITH.

TEXTILE FABRIC. APPLICATION FILED APR-13, 1906.

Patented June 28, 1910.

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Axtomew Witnesses TINTTED STATES PATENT FFllCE.

GEORGE HILTON SMITH, OF EASTON, PENNSYLVANIA, ASSIGNOR T0 PHILIP S. DYER, OF EASTON, PENNSYLVANIA.

TEXTILE FABRIC.

To all whom it may concern:

Be it known that I, GEORGE HILTON SMITH, a subject of the King of Great Britain, residing in Easton, county of Northampton, and State of Pennsylvania, have invented a certain new and useful Improvement in Textile Fabrics.

The present invention has for its object the production of a textile fabric which can be used to manufacture a belt used for transmitting power and for transporting mate'- rials, whichwill have superior advantages over those heretofore made.

Further objects are the production of a belt which will not wear at the edges, and in which the friction at the edges when used for transmitting power and transporting materials will be greatly reduced.

The invention, either in its entirety or partially, can be applied to other uses than belts such as, for instance, for tire protectors for the wheels of vehicles, for shoes for brakes, and for conveying materials.

The accompanying drawings show in Figure 1" a plan view of a portion of a belt, made according to my invention, and Fig. 2 a modification thereof.

In both of the several views, like parts are designated by the same reference characters.

In carrying out my invention, I provide a textile fabric, which may be formed of one or more plies and made of any material, although I prefer to use one made in accordance with the disclosure contained in my co-pending applications for patent, Serial No. 207,416, filed May 11th, 1904, and Serial No. 311,415, filed April 13, 1906, although any other form of fabric may be employed.

Fig. 1 represents the invention as applied to a section of belt which has ordinary selvage edges; Fig. 2 represents the invention as applied to a belt having a pile edge such as disclosed in my application for patent, Serial No. 311,415.

In carrying out my present invention, I take the textile fabric and saturate it with asphaltum. I prefer to saturate the cotton with the asphaltum in liquid form, although the invention is not limited to the form of the asphaltum. The fabric saturated with asphaltum possesses many advantages it is waterproof, not affected by heat, and will Specification of Letters Patent.

Application filed April 13, 1906.

Patented June 28, 191(1 Serial No. 311,414.

wear much longer than fabrics heretofore known.

The invention may be modified in many ways; one of these is as follows: Asphalt-um melts and becomes liquid at about 420 degrees Fahrenheit, while cotton is destroyed at a temperature of about 280 degrees Fahrenheit. Therefore it is advantageous to provide means to permit a cotton fabric to be saturated with liquid asphaltum without destroying the cotton. This end is attained by melting the asphaltum and mixing it with an oil. I prefer to use linseed oil, but other oils may be used, if desired. In order to give the mixture of oil and asphaltum the necessary body, and prevent stickiness and other objectionable qualities of the belt, I add to the mixture of oil and asphaltum a certain amount of wax. Any form of wax may be used, but I prefer to use paraffin wax, or beeswax. This mixture of asphaltum with other materials, such as oils or wax, or both, may be used in connection with other fabrics used in lieu of cotton. As a typical manner of making this part of the invention, I may use 5 parts of asphaltum with 10 parts of linseed oil, and 2!; parts of beeswax, or paraffin wax. The asphaltum is first melted and mixed with the oil and wax, and the temperature of the mixture is then brought down to below 280 degress Fahrenheit. It is then put upon the fabric so that the latter becomes thoroughly saturated with the mixture. When used in connection with carrying hot cement, the asphaltum mixture may become soft, but it will not become sticky. I11 connection with the fabric thus treated, I provide for lubrication of the edges by means of a coating of plumbago or graphite. This coating is best put on in powdered form. In connection with the pile edged belt shown in Fig. 2, applied by being thickly spread upon the pile, which will hold it in place, without the addition of any other means. When the coating is added to a selvage belt such as is shown in Fig. 1, it is necessary first to prepare the belt so that the coating will stick to it, and be held in place. To permit this to be done, I first cover the edge of the belt with a water-proof glue, mixed with the lubricant, and afterward put upon the mixture as much extra lubricant as will stay in place. Any form of waterproof glue may be the coats may be' employed, but I prefer to use a mixture of glue, with chromic acid, which upon being exposed to light will become waterproof. As a typical formula I may use lb. of glue with 3; oz. of chromic acid, mixed with as much graphite as it will carry. The glue is first melted and is then mixed with the chromic acid and graphite. The selvage edges of the belt are then coated with the mixture and additional graphite is added so that the edges will thoroughly be protected by the graphite. In use, such a belt will stand a great amount of Wear without being injured, and it can be used in certain situations, in which the edges are subjected to frictional action, without readily wearing out.

Having now described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. As a new article of manufacture, a textile fabric having an edge coated with graphite and glue.

2. As a new article of manufacture, a texphaltum, oil and wax, and with an edge coated with graphite.

This specification signed and witnessed this second day of April, 1906.

GEORGE HILTON SMITH.

Witnesses CHAS. B. BRUNNER, JOHN BRUNNER. 

